html body{
    width: 100%;
    height: 100%;
}


.background-welcome{
    /*width: 100%;*/
    /*height: 400px ;*/
    /*filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale')";*/
    /*-moz-background-size:100%;*/
    background-size:100%;
    background: url("/images/background/welcome.jpg") no-repeat;
}